Koltan is a distinctive boys' name in United States, ranking #5395 in 2012 with 17 recorded births. The name reached its all-time peak in 2013 with 20 births ranking #4727. Since 1996, the popularity has increased by 142.9%. In 2012, approximately 1 in every 111,566 boys born was named Koltan. FALLING Recent data shows the name is currently falling.